Lead Balloon,
Well put.
As I an certain you well know, what mid-airs there have been in the US, over the years, have mostly (as you would expect) been around the circuit areas or well used arrival/departure routes --- so, strangely enough, FAA (and most of CA or EEC) concentrate their CNS/ATM resources there --- unlike our apparent policy of "inverse risk management", where (outside of primary airports and a couple of of others) ATC restrictions are roughly inverse --- as the risk decreases, the restrictions increase ---- the illogical aversion to E.
But what would I know, I've only been flying around the world for 50+ years.
Tootle pip!!